189242554 has 8 divisors (see below), whose sum is σ = 286517088. Its totient is φ = 93736860.

The previous prime is 189242549. The next prime is 189242587. The reversal of 189242554 is 455242981.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441942 + ... + 442369.

It is an arithmetic number, because the mean of its divisors is an integer number (35814636).

Almost surely, 2^189242554 is an apocalyptic number.

189242554 is a deficient number, since it is larger than the sum of its proper divisors (97274534).

189242554 is a wasteful number, since it uses less digits than its factorization.

189242554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884420.

The product of its digits is 115200, while the sum is 40.

The square root of 189242554 is about 13756.5458600624. The cubic root of 189242554 is about 574.1247467703.

The spelling of 189242554 in words is "one hundred eighty-nine million, two hundred forty-two thousand, five hundred fifty-four".